Công Cụ Typography

Yes, all typography tools are completely free with no sign-up required. They run entirely in your browser using JavaScript — no data is sent to a server.

Yes. All tools are fully responsive and work on phones, tablets, and desktops. The interactive controls adapt to smaller screens, though some tools like the font compare are most useful on wider viewports.

All modern browsers are supported: Chrome, Firefox, Safari, and Edge. The tools use standard web technologies (CSS, JavaScript, Alpine.js) with no special plugins required. Internet Explorer is not supported.

Google Fonts is a free, open-source library of over 1,700 font families that you can use in any web project. Fonts are served from Google's CDN for fast loading. FontFYI tools use Google Fonts data to let you preview, pair, and generate CSS for any available font.

The tools have access to all 1,911 fonts in the Google Fonts library, covering serif, sans-serif, display, handwriting, and monospace categories. The font list is regularly updated when Google adds new fonts.

Yes. Google Fonts includes fonts for many scripts including Arabic, Chinese, Japanese, Korean, Devanagari, Thai, and more. You can preview and pair these fonts just like Latin fonts. The preview tool lets you enter text in any language to test how a font handles your script.